<template>
  <Dialog v-model="dialogVisible" title="栏目权限" width="800">
    <el-form ref="formRef" v-loading="formLoading" :model="formData" label-width="80px">
      <el-form-item label="角色名称">
        <el-tag>{{ formData.name }}</el-tag>
      </el-form-item>
      <el-form-item label="角色标识">
        <el-tag>{{ formData.code }}</el-tag>
      </el-form-item>
      <el-form-item label="权限范围">
        <el-select v-model="formData.channelDataScope">
          <el-option
            v-for="item in getIntDictOptions(DICT_TYPE.SYSTEM_SITE_DATA_SCOPE)"
            :key="item.value"
            :label="item.label"
            :value="item.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-select
          v-model="siteId"
          @change="getChannelTree(formData.scopeChannelIdList)"
          v-if="formData.channelDataScope === SystemDataScopeEnum.CHANNEL_CUSTOM"
        >
          <el-option
            v-for="item in siteDatas"
            :key="item.id"
            :label="item.name"
            :value="item.id"
          /> </el-select
      ></el-form-item>
      <el-form-item
        v-if="formData.channelDataScope === SystemDataScopeEnum.CHANNEL_CUSTOM"
        label="权限范围"
        style="display: flex"
      >
        <el-card class="card" shadow="never">
          <template #header>
            全选/全不选:
            <el-switch
              v-model="treeNodeAll"
              active-text="是"
              inactive-text="否"
              inline-prompt
              @change="handleCheckedTreeNodeAll()"
            />
            全部展开/折叠:
            <el-switch
              v-model="treeExpand"
              active-text="展开"
              inactive-text="折叠"
              inline-prompt
              @change="handleCheckedTreeExpand"
            />
            父子联动(选中父节点，自动选择子节点):
            <el-switch v-model="checkStrictly" active-text="是" inactive-text="否" inline-prompt />
          </template>
          <el-tree
            ref="treeRef"
            :check-strictly="!checkStrictly"
            :data="treeOptions"
            :props="defaultProps"
            default-expand-all
            empty-text="加载中，请稍后"
            node-key="id"
            show-checkbox
          />
        </el-card>
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button :disabled="formLoading" type="primary" @click="submitForm">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script lang="ts" setup>
import { DICT_TYPE, getIntDictOptions } from '@/utils/dict'
import { defaultProps, handleTree } from '@/utils/tree'
import { SystemDataScopeEnum } from '@/utils/constants'
import * as RoleApi from '@/api/system/role'
import * as PermissionApi from '@/api/system/permission'
import { listSimpleSiteApi } from '@/api/cms/site'
import { listSimpleChannelApi } from '@/api/cms/channel'
import { ElTree } from 'element-plus'
defineOptions({ name: 'RoleChannelPermissionForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗
const siteDatas = ref() //站点列表
const siteId = ref<number>(1) //切换站点ID
const treeOptions = ref<any[]>([]) // 栏目树形结构
const dialogVisible = ref(false) // 弹窗的是否展示
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formData = reactive({
  id: 0,
  name: '',
  code: '',
  channelDataScope: 1,
  dataScopeChannelIds: []
})
const formRef = ref() // 表单 Ref
const channelOptions = ref<any[]>([]) // 树形结构
const treeExpand = ref(false) // 展开/折叠
const treeRef = ref<InstanceType<typeof ElTree>>()
const treeNodeAll = ref(false) // 全选/全不选
const checkStrictly = ref(true) // 是否严格模式，即父子不关联
const scopeChannelIdList = ref<any[]>([]) // 角色的可管理的所有栏目数据

/** 打开弹窗 */
const open = async (row: RoleApi.RoleVO) => {
  dialogVisible.value = true
  resetForm()
  // 加载 site 列表。注意，必须放在前面，不然下面 setChecked 没数据节点
  siteDatas.value = await listSimpleSiteApi()
  // 设置数据
  formData.id = row.id
  formData.name = row.name
  formData.code = row.code
  formData.channelDataScope = row.channelDataScope
  formData.dataScopeChannelIds = row.scopeChannelIdList
  scopeChannelIdList.value = row.scopeChannelIdList
  console.log("row.dataScopeChannelIds->",row.scopeChannelIdList.values)
  //初始化站点
  siteId.value = siteDatas.value[0].id
  //拉取第一个站点栏目数据
  await getChannelTree(scopeChannelIdList.value)
}

defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  formLoading.value = true
  try {
    const data = {
      roleId: formData.id,
      channelDataScope: formData.channelDataScope,
      siteId: siteId.value,
      dataScopeChannelIds:
        formData.channelDataScope !== SystemDataScopeEnum.CHANNEL_CUSTOM
          ? []
          : treeRef.value.getCheckedKeys(false)
    }
    await PermissionApi.assignRoleChannleScopeApi(data)
    message.success(t('common.updateSuccess'))
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  // 重置选项
  treeNodeAll.value = false
  treeExpand.value = false
  checkStrictly.value = true
  // 重置表单
  formData.value = {
    id: 0,
    name: '',
    code: '',
    channelDataScope: 1,
    dataScopeChannelIds: []
  }
  treeRef.value?.setCheckedNodes([])
  formRef.value?.resetFields()
}

/** 全选/全不选 */
const handleCheckedTreeNodeAll = () => {
  treeRef.value.setCheckedNodes(treeNodeAll.value ? channelOptions.value : [])
}

/** 展开/折叠全部 */
const handleCheckedTreeExpand = () => {
  const nodes = treeRef.value?.store.nodesMap
  for (let node in nodes) {
    if (nodes[node].expanded === treeExpand.value) {
      continue
    }
    nodes[node].expanded = treeExpand.value
  }
}
const getChannelTree = async (dataScopeChannelIds: number[]) => {
  const channels = await listSimpleChannelApi(siteId.value)
  treeOptions.value = handleTree(channels)
  if (dataScopeChannelIds) {
    // 需要在 DOM 渲染完成后，再设置选中状态
    await nextTick()
    treeRef.value?.setCheckedKeys(dataScopeChannelIds, false)
  }
}
/** 初始化 **/
onMounted(async () => {
  siteDatas.value = await listSimpleSiteApi()
})
</script>
